<template>
  <div class="app-container">
    <el-row :gutter="20">
      <el-col :span="showTree ? 5 : 0" :xs="24">
        <category-tree ref="tree" @tree-click="treeClick"/>
      </el-col>

      <el-col :span="showTree ? 19 : 24" :xs="24">
        <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch"
                 label-width="68px"
        >
          <el-form-item label="名称" prop="attrName">
            <el-input
              v-model="queryParams.attrName"
              placeholder="请输入名称"
              clearable
              @keyup.enter.native="handleQuery"
            />
          </el-form-item>
          <el-form-item>
            <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
            <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
          </el-form-item>
        </el-form>

        <el-row :gutter="10" class="mb8">
          <el-col :span="1.5">
            <el-button
              type="primary"
              plain
              :icon="showTree ? 'el-icon-d-arrow-left' : 'el-icon-d-arrow-right'"
              size="mini"
              @click="showTree = !showTree"
            >
            </el-button>
          </el-col>
          <el-col :span="1.5">
            <el-button
              type="primary"
              plain
              icon="el-icon-plus"
              size="mini"
              @click="handleAdd"
            >新增
            </el-button>
          </el-col>
          <el-col :span="1.5">
            <el-button
              type="danger"
              plain
              icon="el-icon-delete"
              size="mini"
              @click="handleDelete"
              :disabled="multiple"
            >删除
            </el-button>
          </el-col>
          <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
        </el-row>

        <el-table v-loading="loading" :data="list" @selection-change="handleSelectionChange">
          <el-table-column type="selection" width="55" align="center"/>
          <el-table-column label="编号" align="center" prop="attrId"/>
          <el-table-column label="名称" align="center" prop="attrName"/>
          <el-table-column label="可选值列表" align="center" prop="valueSelect">
            <template slot-scope="scope">
              <!-- v-for 优先级高于 v-if  -->
              <span v-if="scope.row.valueSelect">
                <el-tag v-if="scope.row.valueSelect" v-for="i in scope.row.valueSelect.split(',')" type="success"
                        style="margin-right: 5px"
                >{{
                    i
                  }}
                </el-tag>
              </span>
            </template>
          </el-table-column>
          <el-table-column
            prop="icon"
            label="图标"
            align="center"
            width="80"
          >
            <template #default="scope">
              <image-preview :src="scope.row.icon" :width="'40px'" :height="'40px'"/>
            </template>
          </el-table-column>
          <el-table-column label="值类型" align="center" prop="valueType" width="100">
            <template slot-scope="scope">
              {{ scope.row.valueType === 1 ? '多个' : '单个' }}
            </template>
          </el-table-column>
          <el-table-column prop="searchType" label="检索" width="80">
            <template slot-scope="scope">
              <dict-tag :options="dict.type.gl_index" :value="scope.row.searchType"/>
            </template>
          </el-table-column>
          <el-table-column prop="enable" label="快速展示" width="80">
            <template slot-scope="scope">
              <dict-tag :options="dict.type.gl_show_status" :value="scope.row.showDesc"/>
            </template>
          </el-table-column>
          <el-table-column prop="enable" label="状态" width="80">
            <template slot-scope="scope">
              <dict-tag :options="dict.type.gl_enable" :value="scope.row.enable"/>
            </template>
          </el-table-column>
          <el-table-column label="所属分组" align="center" prop="groupName"/>
          <el-table-column label="所属分类" align="center" prop="catelogName"/>
          <el-table-column label="操作" align="center" class-name="small-padding fixed-width" fixed="right" width="120">
            <template slot-scope="scope">
              <el-button
                size="mini"
                type="text"
                icon="el-icon-edit"
                @click="handleUpdate(scope.row)"
              >修改
              </el-button>
              <el-button
                size="mini"
                type="text"
                icon="el-icon-delete"
                @click="handleDelete(scope.row)"
              >删除
              </el-button>
            </template>
          </el-table-column>
        </el-table>

        <pagination
          v-show="total>0"
          :total="total"
          :page.sync="queryParams.pageNum"
          :limit.sync="queryParams.pageSize"
          @pagination="getList"
        />
      </el-col>
    </el-row>

    <el-dialog :title="title" :visible.sync="open" width="700px" :close-on-click-modal="false" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="100px">
        <el-form-item label="名称" prop="attrName">
          <el-input v-model="form.attrName" placeholder="请输名称"/>
        </el-form-item>
        <el-form-item label="图标" prop="icon">
          <el-input v-model="form.icon" placeholder="请输入图标"/>
        </el-form-item>
        <el-row>
          <el-col :span="12">
            <el-form-item label="类型" prop="attrType">
              <el-input value="基本属性" readonly/>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="检索" prop="searchType">
              <el-radio-group v-model="form.searchType">
                <el-radio
                  v-for="dict in dict.type.gl_index"
                  :key="dict.value"
                  :label="parseInt(dict.value)"
                >{{ dict.label }}
                </el-radio>
              </el-radio-group>
            </el-form-item>
          </el-col>
        </el-row>
        <el-form-item label="值类型" prop="valueType">
          <el-radio-group v-model="form.valueType">
            <el-radio :label="0">只能单个</el-radio>
            <el-radio :label="1">允许多个</el-radio>
          </el-radio-group>
        </el-form-item>
        <el-form-item label="可选值">
          <el-select v-model="form.valueSelect" multiple allow-create default-first-option placeholder="请输入" filterable
                     clearable
                     style="width: 100%"
          >
          </el-select>
        </el-form-item>
        <el-row>
          <el-col :span="12">
            <el-form-item label="状态" prop="enable">
              <el-radio-group v-model="form.enable">
                <el-radio
                  v-for="dict in dict.type.gl_enable"
                  :key="dict.value"
                  :label="parseInt(dict.value)"
                >{{ dict.label }}
                </el-radio>
              </el-radio-group>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="快速展示" prop="showDesc">
              <el-radio-group v-model="form.showDesc">
                <el-radio
                  v-for="dict in dict.type.gl_show_status"
                  :key="dict.value"
                  :label="parseInt(dict.value)"
                >{{ dict.label }}
                </el-radio>
              </el-radio-group>
            </el-form-item>
          </el-col>
        </el-row>
        <el-form-item label="所属分类" prop="catelogFrom">
          <category-cascader ref="catSelect" @change="catSelectChange" style="width: 100%"/>
        </el-form-item>
        <el-form-item prop="groupId">
          <span slot="label">
                <el-tooltip content="需要先指定所属分类" placement="top">
                <i class="el-icon-question"></i>
                </el-tooltip>
                所属分组
              </span>
          <el-select v-model="form.groupId" placeholder="请选择" style="width: 100%" filterable clearable>
            <el-option v-for="i in groups" :label="i.attrGroupName" :value="i.attrGroupId" :key="i.attrGroupId"/>
          </el-select>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
export default {
  /**
   * 规格参数组件
   */
  name: 'Spec',
  dicts: ['gl_enable', 'gl_index', 'gl_show_status'],
  data() {
    return {
      // 遮罩层
      loading: true,
      showTree: true,
      // 选中数组
      ids: [],
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 表格数据
      list: [],
      // 弹出层标题
      title: '',
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        // 属性类型，0：销售属性 1：基本属性
        attrType: 1,
        attrName: undefined,
        catelogId: undefined
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        attrName: [
          { required: true, message: '名称不能为空', trigger: 'blur' }
        ],
        catelogFrom: [
          { required: true, message: '所属分类不能为空', trigger: 'blur' }
        ],
        groupId: [
          { required: true, message: '所属分组不能为空，需要先指定所属分类', trigger: 'blur' }
        ]
      },
      uri: '/product/attr',
      groups: []
    }
  },
  created() {
    this.getList()
  },
  methods: {
    treeClick(data, node) {
      // 争对叶子节点有效
      if (node.isLeaf) {
        this.queryParams.catelogId = data.catId
        this.handleQuery()
      }
    },
    /** 查询列表 */
    getList() {
      this.loading = true
      this.$api.get(this.uri, this.queryParams).then(({ data }) => {
        this.list = data.records
        this.total = data.total
        this.loading = false
      })
    },
    // 取消按钮
    cancel() {
      this.open = false
      this.reset()
    },
    // 表单重置
    reset() {
      this.form = {
        attrId: undefined,
        attrName: undefined,
        valueType: 1,
        searchType: 1,
        icon: undefined,
        valueSelect: undefined,
        // 属性类型，0：销售属性 1：基本属性
        attrType: 1,
        enable: 1,
        showDesc: 1,
        catelogId: undefined,
        groupId: undefined,
        catelogFrom: []
      }
      this.groups = []
      this.$nextTick(() => {
        this.$refs.catSelect.reset()
      })
      this.resetForm('form')
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1
      this.getList()
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.queryParams.catelogId = undefined
      this.queryParams.attrName = undefined
      this.$refs.tree.setCurrentKey(null)
      this.resetForm('queryForm')
      this.handleQuery()
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.attrId)
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.open = true
      this.title = '添加'
      this.reset()
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.$api.get(this.uri + '/' + row.attrId).then(response => {
        this.open = true
        this.title = '修改'
        this.form = response.data
        if (this.form.valueSelect) {
          // 字符串切割为数组
          this.form.valueSelect = this.form.valueSelect.split(',')
        }
        this.getGroups(this.form.catelogId)
        this.$nextTick(() => {
          this.$refs.catSelect.set(response.data.catelogFrom)
        })
      })
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs['form'].validate(valid => {
        if (valid) {
          let vs = this.form.valueSelect
          const cache = this.form.valueSelect
          if (Array.isArray(vs) && vs.length) {
            // 拼接,
            this.form.valueSelect = vs.join(',')
          } else {
            this.form.valueSelect = undefined
          }

          // 默认组件会传入选中的父子数组，只需要提交最后一项
          let catelogFrom = this.form.catelogFrom
          this.form.catelogId = catelogFrom[catelogFrom.length - 1]

          if (this.form.attrId != undefined) {
            this.$api.post(this.uri, this.form).then(response => {
              this.form.valueSelect = cache
              this.$modal.msgSuccess('修改成功')
              this.open = false
              this.getList()
            })
          } else {
            this.$api.put(this.uri, this.form).then(response => {
              this.form.valueSelect = cache
              this.$modal.msgSuccess('新增成功')
              this.open = false
              this.getList()
            })
          }
        }
      })
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const idArr = row.attrId || this.ids
      this.$modal.confirm('是否确认删除编号为"' + idArr + '"的数据项？').then(() => {
        return this.$api.delete(this.uri + '/' + idArr)
      }).then((resp) => {
        this.getList()
        this.$modal.msgSuccess('删除成功')
      })
    },
    getGroups(catId) {
      this.groups = []
      if (catId) {
        this.$api.get('/product/attrGroup/selectList/' + catId).then(({ data }) => {
          if (data.length) {
            this.groups = data
          } else {
            this.$modal.msgWarning('该分类下没有对应的分组')
          }
        })
      }
    },
    catSelectChange(data) {
      this.form.catelogFrom = data
      this.form.groupId = undefined
      this.groups = []
      if (data.length) {
        // 获取选中的分类，查询对应的分组
        const catId = data[data.length - 1]
        this.getGroups(catId)
      }
    }
  }
}
</script>

<style scoped>

</style>
